# A126391 (b-file synthesized from sequence entry)
1 1
2 1
3 4
4 24
5 240
6 4320
7 146880
8 9694080
9 1260230400
10 325139443200
11 167121673804800
12 171466837323724800
13 351507016513635840000
14 1440475753672879672320000
15 11803258325595576034990080000